T57.1X4A
T57.1X4A: Toxic effect of phosphorus and its compounds, undetermined, initial encounter
Billable / specific codeICD-10-CM
T57.1X4A is a billable, specific ICD-10-CM code for toxic effect of phosphorus and its compounds, undetermined, initial encounter. It is valid for submission on a claim.
Check T57.1X4A with the rest of the claim: free scrubber7th character "A": initial encounter
The appropriate 7th character is to be added to each code from category T57
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T57.1X4A is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56612Billing and Coding: CT of the Head
- A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
- A57205Billing and Coding: Oximetry Services
Code history
Unchanged in every release from FY2024 to FY2027.